I use the viper also ..if i am familer with the tree,meaning ive climbed it before and cut any limbs out of the way i can be sitting down hunting in about 15 mins somtimes faster..one thing i do is i have a little bag attached to my stand that i keep 2 hooks,a saw, and my pullup rope .
when i get it hooked up i just pull out the rope hook it to my weapon ,and up i go..you kinda get a system after a while..but i agree with the other guys ,,safty first..if you need to slow down then by all means do so..no need to hurry up and fall

I have used a fair amount of climbers and i think the summit viper is in the top of its class..safe to climb with and comfortable to stay a while
oh my rope is 30 ft long and i always go till its taunt..if i can that is..in these ga mtns you have to get up there..now on flat land 15-20 is good,,